The document discusses the key differences between tasks and drills/exercises in language teaching. It defines a task as having three key characteristics: 1) requiring learners to use language pragmatically to achieve an outcome, 2) focusing primarily on meaning over form, and 3) resembling real-world language use. Tasks can engage various skills and cognitive processes. They can be focused on form implicitly through feedback or explicitly by drawing attention to linguistic features. The document provides details on task design features and methodological techniques for implementing form-focused instruction through tasks.